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Finding the Fourth Proportional to 340,314.73, 510,472.10 and 90,990.25

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Solution

The fourth proportional to 340,314.73, 510,472.10 and 90,990.25 is: 136,485.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,314.73 : 510,472.10 = 90,990.25 : x
  2. Step 2: Convert to fraction form
    340,314.73/510,472.10 = 90,990.25/x
  3. Step 3: Cross multiply
    340,314.73x = 510,472.10 × 90,990.25
  4. Step 4: Simplify right side
    340,314.73x = 46,447,983,997.03
  5. Step 5: Solve for x
    x = 46,447,983,997.03/340,314.73
  6. Step 6: Final answer
    x = 136,485.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.